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Table 2
Summary of different constants (derived from measurement results) for the calculation of the S-shaped function. Sound attenuation without meteorological influences ∆L(d, 0), because of meteorological influences H and for favourable (
> 0) and unfavourable (
< 0) sound propagation.
| Averaged values |
Optimization results |
Sound attenuation [dB(A)] |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| UL [dB(A)] | ∆L(d, 0) [dB(A)] | a [1/s] | b [1] | LL [dB(A)] | R2 [1] | H = |LL − UL| |  ≫ 0 favourable |
 ≪ 0 unfavourable |
|
| Markt Allhau 250 m | −20.5 | −21.8 | 34.272 | −0.395 | −22.4 | 0.33 | 1.9 | 1.3 | −0.6 |
| Aderklaa 100 m | −8.2 | −9.5 | 29.934 | −1.850 | −15.0 | 0.59 | 6.8 | 1.3 | −5.5 |
| Aderklaa 150 m | −10.1 | −12.8 | 24.896 | −1.279 | −21.4 | 0.70 | 11.3 | 2.7 | −8.6 |
| Aderklaa 250 m | −12.5 | −16.6 | 13.799 | −0.624 | −26.3 | 0.55 | 13.8 | 4.1 | −9.7 |
| Bad Voeslau 200 m | −13.7 | −16.9 | 6.159 | −0.569 | −22.2 | 0.74 | 8.5 | 3.2 | −5.3 |
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